• Journal of the Institute of Electronics Engineers of Korea SC
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• v.44 no.3
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• pp.51-57
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• 2007

Without human dynamics effects, the manually operated target tracking system has poor performance or instability in real environments. The tracking system is invalid when a human is added to the control loop as a real time delay, because input signals are generated by human operator to reduce the errors between target and gun. In this paper, we consider the human operator as a part of controller and modeling the human operator as a first-order model to generate the intentional force. But it is known that human modeling is not easy because of disturbance or noise of the vehicle while moving for the target. We performed a variety of experiments with real plant to identify the model's parameters and verify the proposed operator model's efficiency.

• Proceedings of the ESK Conference
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• 1992.10a
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• pp.26-32
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• 1992

세계적으로 항공기 사고의 통계적 분석에 의하면 항공기 운용자의 인적과실(Human error)로 인한 항공기 사고가 약 70% 이상으로 보고되고 있다. 항공기 운용자의 인적과실에 기인한 요인들 중에서 운용자의 작업량, 작업공간, 작업환경, 인체크기, 인체 생리, 인간 심리 및 습관 등을 항공기 설계단계에서 고려하지 못한 요인이 대부분이다. 일반적으로 항공기 비행품질(Flying qualities)의 영향을 주는 설계분야는 크게 세가지로 항공기 형상(Configuration), 조종체계(Control system)및 조종실 배치(Cockpit layout)로 분류된다. 이들 세가지 설계분야 중에서 조종실의 운용자 인간공학적인 요구 사항을 고려하지 않으면 항공기 운용성 품질중에서 삼분의 일이 감소될 수 있다. 그리고 항공기 개발시에 전담하는 항공기 설계 분야별로 구분하고 그 전담설계 부서들과 인간공학적 조종실 설계 전담 부서가 항공기 비행 품질 및 운용자 인적과실(Human error)에 미치는 영향을 분석하고 인간공학의 중요성을 강조한다. 항공기를 개발할때에 개발자는 그 항공기를 운용하는 운용자의 인체, 생리, 심리, 습관 등을 고려 하여 항공기 조종실의 인간공학적 최적화 설계 및 배치 (Design and layout)를 개발초기단계부터 항공기를 설계할때에, 그 항공기의 조종실 품질은 조종사가 항공기 비행 임무를 수행할때에 항공기 비행을 위한 용이한 정보 인식(Sencing), 용이한 정보 결심(Deciding) 및 용이한 조종(Manipulating)의 특성을 조종사에게 제공할 때 항공기 비행 품질이 좋아질 것이다.

• Journal of Advanced Navigation Technology
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• v.21 no.6
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• pp.529-536
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• 2017

The general ground control system has control and information display functions for the operation of a single unmanned aerial vehicle. Recently, the function of the single ground control system extends to the operation of multiple UAVs. As a result, operators have been exposed to more diverse tasks and are subject to task overload due to various factors during their mission. This study proposes an adaptive ground control system that reflects the operator's condition through the task overload measurement of multiple UAV operators. For this, the ground control software is developed to control multiple UAVs at the same time, and the simulator with six degree-of-freedom aircraft dynamics is constructed for realistic human-machine-interface experiments by the operators.

• Journal of Navigation and Port Research
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• v.48 no.3
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• pp.214-220
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• 2024

Remote control is used for operating maritime autonomous surface ships. The operator controls the ship using control data generated by the remote control system. To ensure successful remote control, three principles must be followed: safety, reliability, and availability. To achieve this, the suitability of both the control data and operators for remote control must be established. Currently, there are no international regulations in place for evaluating remote control suitability through experiments on actual ships. Conducting such experiments is dangerous, costly, and time-consuming. The goal of this study is to develop a suitability evaluation method using the output values of control devices used in actual ship operation. The proposed method involves evaluating the suitability of data by analyzing the output values and evaluating the suitability of operators by examining their tracking of these output values. The experiment was conducted using a shore-based remote control system to operate the training ship 'Hannara' of Korea National Maritime and Ocean University. The experiment involved an iterative process of obtaining the operator's tracking value for the output value of the ship's control devices and transmitting and receiving tracking data between the ship and the shore. The evaluation results showed that the transmission and reception performance of control data was suitable for remote operation. However, the operator's tracking performance revealed a need for further education and training. Therefore, the proposed evaluation method can be applied to assess the suitability and analyze both the control data and the operator's compliance with the three principles of remote control.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11b
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• pp.1057-1060
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• 2003

네트워크 사용자들의 다양한 요구를 수용하고 신뢰성이 있는 서비스를 제공하기 위하여 많은 통신 사업자들은 SLA(Service Level Agreement)를 제공하고자 하고 있다. 통신 사업자들은 다양한 네트워크 서비스를 제공하고 있으며 각 네트워크 서비스에 대한 SLA 를 제공하기 위한 SLA 시스템은 유연한 구조를 가져야 한다. SLA 서비스는 계속적인 상황 감시를 통해 서비스 이용자와 계약 상황이 지켜질 수 있도록 해야 한다. 이를 위해서는 SLA 시스템 운용자의 부재시에 운용자에게 긴급 상황을 알려 주는 SMS(Short Message Service) 제공이 필요하다. SLA 시스템 운용자는 여러 등급이 존재하며 관리해야 하는 사항과 서비스도 다양하다. 이런 경우를 고려하여 효과적인 SMS 기능을 SLA 시스템 운용자에게 제공하는 SMS 기능을 본 논문에서 설계하고 구현하였다.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.64-75
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• 2022

The method of accessing multiple control systems in the OT control network centered on operation technology uses the operator authentication technology of each control system. An example is ID/PW operator authentication technology. In this case, since the OT control network is composed of multiple control systems, operator authentication technology must be applied to each control system. Therefore, the operator must bear the inconvenience of having to manage authentication information for each control system he manages. To solve these problems, SSO technology is used in business-oriented IT networks. However, if this is introduced into the OT control network as it is, the characteristics of the limited size of the OT control network and rapid operator authentication are not reflected, so it cannot be seen as a realistic alternative. In this paper, a public key-based authentication mechanism was newly proposed as an operator authentication technology to solve this problem. In other words, an integrated public key certificate that applies equally to all control systems in the OT control network was issued and used to access all control systems, thereby simplifying the authentication information management and making access to the control system more efficient and secure.

• Language and Information
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• v.4 no.1
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• pp.1.2-8
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• 2000

76) $\ldots$[YP $neg_i\;\ldots\;t_i-[f\ldots*(\gamma)\ldots$] (1)=문부정 이동; (2)‘비선택적 결속’(unselective binding) 77) a. 초점운용자(초점 의존적 불변화사)의 통사적 성격을 동일하나, 형태론적 성격은 다를 수 있다. i. 문부정 - 문부정에 의해 결속되는, 하나 이상의 초점 혹은 의문 초점이나, 하나의 양화사를 포함하는 초점범주 ii. even(초점 의존적 불변화사) - even에 의해 결속되는, 하나 이상의 초점을 포함하는 초점범주 iii. 대조 영운용자 - 초점인 대조표지와 합쳐진 초점범주 b. 초점운용자의 의미는 운용자의 어휘적, 범주적 성격에 의거한다.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.41 no.2
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• pp.103-112
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• 2004

In this paper, we propose the automatic control algorithm of torque/pipejacking thrust and slurry charging/discharging pressure in the microtunneling system to assist operators assuring the quality of microtunneling construction. To develop this algorithm, we analyze the microtunneling system which is manually controlled by expert and design fuzzy controller. warning system, and halt sensing system The proposed automatic tunneling algorithm shows good tunneling results comparable with those of experts.

• Journal of Korean Tunnelling and Underground Space Association
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• v.5 no.3
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• pp.269-278
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• 2003

Microtunneling techniques play a crucial role in the construction of pipelines. In this paper shows the automatic tunneling algorithm of microtunneling system by using fuzzy logic technology to assist operators assuring the quality of microtunneling construction. To have effective output value of fuzzy controller, we slightly modified the conventional defuzzificaton methods. The proposed automatic tunneling algorithm shows good tunneling results comparable with those of experts.

• ETRI Journal
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• v.8 no.2
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• pp.53-64
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• 1986

본고에서는 TDX-1의 주변정합장치로 구성되는 가입자 회로, 애널로그 중계회로, 디지틀 중계회로의 기능 및 설계에 대한 특성과 측정 결과를 중심으로 기술하였다. 또한 TDX-1시스팀의 현장운용중 발생되는 가입자 서비스 및 운용자 불편사항을 수집 분석하여 현재의 정합장치에 대한 설계 검토 보완과 향후 TDX-10의 주변정합장치 개발에 활용토록 할 예정이다.